Desk



FIG. 1 is a perspective view of the desk.

FIG. 2 is a front elevational view of the desk; and,

FIG. 3 is a side elevational view of the desk with the opposite side being a mirror image of the same.

The top and bottom of the desk form no part of the claimed design.

The broken lines in the drawings form no part of the claimed design. 

The ornamental design for a desk, as shown and described. 